ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,457,926, issued on Nov. 4, was assigned to Delangfu Technology (Dongguan) Co. Ltd. (Guangdong, China).
"Lawnmower with maintenance coupling" was invented by Guixing Ye (Guangdong, China) and Zhiguang Liu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lawnmower includes a power unit and a lawn mowing device, the power unit includes a base, the lawn mowing device includes a blade holder detachably connected to the base, the base is provided with a first locking device for fixing the blade holder, the first locking device includes a first installation rod on the base, first pins and first locking mechanisms disposed on the first installa...